nonthermal

N1O1N1T1H4E1R1M3A1L1

adjective

Not thermal.

Opposite
thermal
OriginEnglish thermal ← Middle English non- ← Old English nān- →
UncommonScrabble 15
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Meanings

adjectivenonthermal (not comparable)

alternative non-thermal

  1. not comparableNot thermal.

Synonyms & antonyms

adjectivenot involving heat

Opposite
thermal

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*né
  2. Proto-Germanic*ne
  3. Proto-Indo-European*ís?
  4. Proto-Indo-European*h₁óynos
  5. Proto-Germanic*ainaz
  6. Proto-Germanic*nainaz
  7. Proto-West Germanic*nain
  8. Old Englishnān
  9. Middle Englishnon
  10. Old Englishnān
  11. Old Englishnān-
  12. Middle Englishnon-
  13. Englishnon-
  14. Englishthermal
  15. Englishnonthermal

From non- + thermal.

Full word history & related roots →
Cite this entry
APA

nonthermal. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/nonthermal

MLA

“nonthermal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/nonthermal. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “nonthermal,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/nonthermal.

Source: nonthermal on Wiktionary, CC BY-SA 4.0.